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Overdrive Identification

To: "Triumph Digest List" <triumphs@autox.team.net>
Subject: Overdrive Identification
From: "Dave Rogers" <roggez@bigpond.net.au>
Date: Sun, 30 Oct 2005 16:28:35 +1100
    You may recall a few weeks ago,  I asked if anyone could help with the 
identification of a J-Type overdrive fitted to a friends' car, the ID plate 
of which started with the numerals 26, indicating a 26% reduction ratio.
    Thank you to all who provided some guidance and offered their views on 
the matter. All the information I could glean from various sources and 
references, suggests that whoever stamped the original ID plate must have 
had a bad day (and it appears to be the original) as he erred! A guy named 
Peter from a firm in the UK which specialises in Laycock overdrives, 
informed me that they did not make a 26% ratio model and that it should have 
read 28/xxxx, indicating the unit came from a 2500S, TC or PI model. with a 
28% reduction on 3rd and 4th gears.
    Whilst I feel a little like the problem has been rectified without 
finding the actual cause, I can only think that the guy who stamped 26 on 
the plate is probably still laughing!

Dave Rogers
Canberra, Australia
62 TR4 CT12038-0
72 TR6 CT80026-0 (was U but now R-ighted and PI'd)


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